It's probably been 10 years since I've been to one. They used to have them on one of the indian reservations here in Florida. They didn't have to quit doing it and it's still legal there but it was bringing too much negative attention so they stopped it. It was still a dang good time. The best one was you had to catch the hog and put a t shirt on it.
My family use to go out there. I remember I was maybe 8 or 9 with a broke arm in a cast holding our catch dogs leash. Well she heard that pig squeal and she done dragged me all up and down the pen lol.